Sash-cord guide



(N0 Mod NE0HT SASH 00m) GUIDE No. 444,363. Patented Jan. 6, 1891.

UNITED STATES PATENT ()FFICE.

JOHN KNECHT, OF FREEPORT, ILLINOIS.

SASH-CORD GUIDE.

SPECIFICATION forming part of Letters Patent No. 444,363, dated January6, 1891.

I Application filed December 21, 1889- Serial No- 334q514. (No model.) I

To all whom it may concern.-

Be it known that I, JOHN KNEOHT, a resident of Freeport, in the countyof Stephenson and State of Illinois, have invented certain new anduseful Improvements in Sash-Pulleys; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use the same.

My invention relates to improvements in sash-pulleys, and is fullydescribed and explained in this specification, and shown in theaccompanying drawings, in which Figure l is a front elevation of myimproved sash-pulley, the view being in the direction indicated by thearrow at, Fig. 2. Fig. 2 is a side elevation of the pulley. Fig. 3 is aview partly in rear elevation and partly in central vertical section,the view being in the direction indicated by the arrow at, Fig. 2; andFig. 4 is a perspective view of the arbor on which the pulley proper ismounted.

In the views, A is a pulley-case of ordinary size and form, having inits side walls parallel slots to, extending from the rear margin of thecase to a point in front of the proposed axis of the pulley.

Within the case is an arbor B, preferably of greater diameter than thewidth of each of the slots 0., and having flattened ends b fittingclosely in said slots, and these flattened ends are preferably providedwith wedgeshaped projecting lugs 12, whose function is hereinafterexplained.

On the arbor B is mounted a pulley O of ordinary form and material,rotating freely upon the arbor, and the operation of this pulley whenthe parts are connected and in operative position is the same as that ofany sash-pulley of ordinary construction.

The parts of this device are assembled by first placing the arbor withinthe pulley, leaving the ends I) b projecting slightly beyond thepulley-faces, and then inserting the arbor by a lateral movement in theslot at a and forcing into the position shown in Fig. 2, when the deviceis ready for use. The length of the body of the arbor is preferably suchthat when the parts are connected the sides of the case are sprungslightly outward from their normal condition, the inward pressure of thesides being borne by the shoulders at the ends of the body of the arbor,and the friction thus created is sufticient ordinarily to prevent theaccidental displacement of the arbor. \Vhen the pulley is inserted in awindow-jamb, however, the lugs b are seated in the material of the jamband form positive stops to prevent the movement of the arbor in thecase.

The endsb b of the arbor, though preferably fiattened, as shown, maybeof any other form, if desired; but theflattened shape shown preventsrotation of the arbor in the case, and

thereby prevents any tendency of the arbor to leave its working positionby reason of the rotation of the pulley. The slots at in the case arepreferably at right angles to the front face thereof, in order' tofacilitate the molding thereof; but they may evidently be placed at anyother angle, if desired.

Having now described and explained my invention, what I claim as new,and desire to secure by Letters'Patent, is

The combination, with the case A, having the slots (2, of the arbor B,having the wedgeshaped end I) proj ectingbeyond the side walls of thecase, substantially as and for the purpose set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

JOHN KNECHT.

Vitnesses:

J. A. GRAIN, A. C. FERGUSON.

